Research on Molding for Al₂O₃Ceramic Substrate and its Processing Technic

Abstract:

By adopting technique for forming colloid to manufacture Al2O3 Ceramic Substrate, the effect of aggregation reaction which is caused by pH value, temperature for shaping, evocating agent and some other factors of slurry has been researched in the processes for shaping Substrate. The result addresses that the substrate with well-proportioned in density, contractibility and over 78MPa intensity is able to be made while the pH is about 9, the temperature is between 60 and 70°, the shaping duration is no more than 30 minutes, in glass mold, and with 120 item undersize α-Al2O3 powder. To dunk the desiccating substrate for 20 minutes, it would gain the good flexibility, moreover, it is able to be cut. After it is desiccated again, it becomes firm again, this kind of characteristic can be repeated numbers of times.

• Periodical: Advanced Materials Research (Volumes 154-155)
• Pages: 1397-1400
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.154-155.1397
• Online since: October 2010
• Authors: Zhan Xin Zhang, Hong Kui Hu, Feng Ming Wang, Tao Liu
• Keywords: Al₂O₃ Ceramic, Colloid Forming, Polymerization Reaction

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